CN103357959A - Reaming cutter - Google Patents
Reaming cutter Download PDFInfo
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- CN103357959A CN103357959A CN2013102663141A CN201310266314A CN103357959A CN 103357959 A CN103357959 A CN 103357959A CN 2013102663141 A CN2013102663141 A CN 2013102663141A CN 201310266314 A CN201310266314 A CN 201310266314A CN 103357959 A CN103357959 A CN 103357959A
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- end part
- cutting end
- shank
- reaming knife
- die cavity
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Abstract
The invention discloses a reaming cutter which comprises a cutter body, reaming blades and a fastening piece, wherein the cutter body is composed of a shank part, cutting end part and a circumferential surface positioned between the shank and the cutting end part; the reaming blades are mounted at the cutting end part through the fastening piece; an inner-cooling hole penetrating from the shank to the cutting end part is formed in the cutter body; a plurality of cavities are formed in the circumferential surface; communication holes communicated with the inner-cooling hole are formed in the cavities. The reaming cutter has the advantages that the structure is simple, the vibration can be restrained effectively, and the bad influences caused by suspended extension to processing quality are eliminated.
Description
Technical field
The present invention relates to a kind of reaming knife, relate in particular to that a kind of draw ratio is large, anti-vibration, high accuracy processing, reaming knife.
Background technology
Mainly be that cutting force is born in the cutting side during ream machining Tool in Cutting, smear metal is discharged or the discharge of cutting hole bottom through chip pocket from cutting end part, along with manufacturing development, reamer is to axially, the future development that radial dimension increases, not only being applied in whole hard closes reamer and also is widely used in detachable alloy cutter head reamer and detachable digital cuttings reamer, this ream machining cutter is in the deep hole machining process, large overhanging easily makes cutting portion vibration-generating in the hole, cutting portion is poorer to the overhang rigidity of slotted hole process tool more of shank, thereby the long aperture knife tool that overhangs adds and is more prone to vibration-generating and more violent man-hour, the vibration that occurs during cutting causes the aperture knife tool fracture, machined surface quality is poor, dimensional accuracy is low, it is very fast that vibrational energy makes the cutting tip wearing and tearing simultaneously, reduce the working durability, in order to guarantee the service life of blade, avoid the aperture knife tool fracture to cause workpiece to scrap, generally can only be used for the processing aperture ratio little, the use occasion that machined surface quality is not high.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide a kind of simple in structure, can establishment vibration, eliminate overhang long to the dysgenic reaming knife of hole crudy.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of reaming knife, comprise cutter hub, ream blade and securing member, described cutter hub is made of shank, cutting end part and the side face between shank, cutting end part, described ream blade is installed in cutting end part by securing member, described cutter hub is provided with the interior cold hole that is through to cutting end part from shank, described side face is provided with a plurality of die cavities, and described die cavity is provided with the intercommunicating pore that communicates with described interior cold hole.
Described a plurality of die cavity evenly distributes along axial direction and the circumferential direction of cutter hub.
From shank to cutting end part, each die cavity repeatedly the aperture of through hole increase successively.
Described intercommunicating pore is opened in the center of described die cavity bottom surface.
The central shaft of described intercommunicating pore and the rotary middle spindle of described cutter hub are coplanar.
Compared with prior art, the invention has the advantages that:
Reaming knife of the present invention, be provided with a plurality of die cavities at side face, die cavity is provided with the intercommunicating pore that communicates with interior cold hole, the cooling medium that flows during work is through interior cold hole, intercommunicating pore is delivered to die cavity, between reaming knife and processed hole inwall, form dynamic cooling medium guide pillar, it can be according to the variation to pressure around the reaming knife of amount of deflection and the dynamic auto adjustment medium of cutting vibration, thereby eliminate or suppress cutting amount of deflection and the cutting vibration of reaming knife, even if so that in deep-processing process, also can vibrate by establishment, eliminate elongation to the impact of finished surface cylindricity, avoid widening reaming knife in the application of big L/D ratio pass machining operating mode because the fracture of vibration generation reaming knife causes the problem that workpiece is scrapped; In addition, reaming knife of the present invention has carried out sufficient cooling to cutting portion and clamping part, has improved greatly the service life of reaming knife.
Description of drawings
Fig. 1 is the perspective view of the first embodiment of the present invention.
Fig. 2 is the front view of the first embodiment of the present invention.
Fig. 3 is that Fig. 2 is the A-A cutaway view.
Fig. 4 is the perspective view of the second embodiment of the present invention.
Fig. 5 is the front view of the second implementation column of the present invention.
Fig. 6 is the B-B cutaway view of Fig. 5.
Each label represents among the figure:
1, cutter hub; 2, ream blade; 3, securing member; 11, shank; 12, cutting end part; 13, side face; 14, intercommunicating pore; 15, interior cold hole; 16, die cavity.
The specific embodiment
Fig. 1 to Fig. 3 shows the first reaming knife embodiment of the present invention, this reaming knife comprises cutter hub 1, ream blade 2 and securing member 3, cutter hub 1 is made of shank 11, cutting end part 12 and the side face 13 between shank 11, cutting end part 12, ream blade 2 is installed in cutting end part 12 by securing member 3, cutter hub 1 is provided with the interior cold hole 15 that is through to cutting end part 12 from shank 11, side face 13 is provided with a plurality of die cavities 16, and die cavity 16 is provided with the intercommunicating pore 14 that communicates with interior cold hole 15.The cooling medium that flows during work is through interior cold hole 15, intercommunicating pore 14 is delivered to die cavity 16, between reaming knife and processed hole inwall, form dynamic cooling medium guide pillar, it can be according to the variation to pressure around the reaming knife of amount of deflection and the dynamic auto adjustment medium of cutting vibration, thereby eliminate or suppress cutting amount of deflection and the cutting vibration of reaming knife, even if so that in deep-processing process, also can vibrate by establishment, eliminate elongation to the impact of finished surface cylindricity, avoid widening reaming knife in the application of big L/D ratio pass machining operating mode because the fracture of vibration generation reaming knife causes the problem that workpiece is scrapped; In addition, reaming knife of the present invention has carried out sufficient cooling to cutting portion and clamping part, has improved greatly the service life of reaming knife.
A plurality of die cavities 16 evenly distribute along axial direction and the circumferential direction of cutter hub 1, in the present embodiment, with arranged in a straight line four die cavities 16 are arranged along the axial direction of cutter hub 1, and are arranged with four row along circumferential direction.From shank 11 to cutting end part 12,16 of each die cavities repeatedly aperture of through hole 14 increase successively, so that the greatly place of overhanging to reaming knife provides larger circumferential pressure, the amount of deflection at more effective inhibition cutting end part 12 places remedies the reaming knife poorer deficiency of larger rigidity that overhangs; Intercommunicating pore 14 is opened in the center of die cavity 16 bottom surfaces, is convenient to the even distribution of cooling fluid, improves its balance and stability.The rotary middle spindle of the central shaft of intercommunicating pore 14 and cutter hub 1 is coplanar, in order to guarantee the intensity of side face 13.
Reaming knife of the present invention is when work, the cooling medium that a part flows is delivered to cutting zone through interior cold hole 15, the cooling medium that another part flows is delivered to die cavity 16 through interior cold hole 15, intercommunicating pore 14, side face 13 and fraising finished surface are sealed in the most of cooling medium in the die cavity 16 in the die cavity 16, and fraction is arranged between side face 13 and fraising finished surface, make and form the circumferential pressure that has equivalent amount with die cavity 16 on the side face 13, and the same with the distributed architecture of die cavity 16, the distribution of this pressure group is about the pivot axial symmetry of cutter hub 1.Cooling medium depends on that to the size of die cavity 16 and fraising finished surface applied pressure the pressure of cooling medium, the base area of die cavity 16 and the bottom surface of die cavity 16 and the gap between the fraising finished surface determine, at the base area one of the pressure of cooling medium and die cavity 16 regularly, gap between the bottom surface of die cavity 16 and the fraising finished surface is less, gives die cavity 16 applied pressures larger.When cutting end part 12 produces cutting vibration, this pressure group acts on the cutting moment that produces an opposing vibration on the die cavity 16, this moment suppresses, the decay cutting vibration, when cutting moment is enough large, even can eliminate vibration, thereby the raising machined surface quality, and prevent from vibrating the reaming knife fracture that causes, effectively avoid workpiece to scrap.The cooling medium that flows that has certain pressure between side face 13 and the fraising finished surface can reduce the friction between reaming knife and the fraising finished surface, improves machined surface quality.Simultaneously, the pressure group that acts on the die cavity 16 can suppress the rotary middle spindle generation amount of deflection that cutting end part 12 departs from cutter hub 1, makes the fraising finished surface have better axial, radial dimension.
Fig. 4 to Fig. 6 shows the second reaming knife embodiment of the present invention, the present embodiment and the first embodiment are basic identical, difference only is: ream blade 2 is made of tool rest and a plurality of independent blade that is fixed on the tool rest in the present embodiment, the distributional class of die cavity 16 is like helical structure, other parts are identical with the first embodiment, do not repeat them here.
Although the present invention discloses as above with preferred embodiment, yet is not to limit the present invention.Any those of ordinary skill in the art in the situation that do not break away from the technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, all should drop in the scope of technical solution of the present invention protection any simple modification, equivalent variations and modification that above embodiment does according to the technology of the present invention essence.
Claims (7)
1. reaming knife, comprise cutter hub (1), ream blade (2) and securing member (3), described cutter hub (1) is by shank (11), cutting end part (12) and be positioned at shank (11), side face (13) between the cutting end part (12) consists of, described ream blade (2) is installed in cutting end part (12) by securing member (3), described cutter hub (1) is provided with the interior cold hole (15) that is through to cutting end part (12) from shank (11), it is characterized in that: described side face (13) is provided with a plurality of die cavities (16), and described die cavity (16) is provided with the intercommunicating pore (14) that communicates with described interior cold hole (15).
2. reaming knife according to claim 1, it is characterized in that: described a plurality of die cavities (16) evenly distribute along axial direction and the circumferential direction of cutter hub (1).
3. reaming knife according to claim 1 and 2 is characterized in that: from shank (11) to cutting end part (12), each die cavity (16) repeatedly the aperture of through hole (14) increase successively.
4. reaming knife according to claim 1 and 2, it is characterized in that: described intercommunicating pore (14) is opened in the center of described die cavity (16) bottom surface.
5. reaming knife according to claim 3, it is characterized in that: described intercommunicating pore (14) is opened in the center of described die cavity (16) bottom surface.
6. reaming knife according to claim 1 and 2, it is characterized in that: the rotary middle spindle of the central shaft of described intercommunicating pore (14) and described cutter hub (1) is coplanar.
7. reaming knife according to claim 5, it is characterized in that: the rotary middle spindle of the central shaft of described intercommunicating pore (14) and described cutter hub (1) is coplanar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310266314.1A CN103357959B (en) | 2013-06-28 | 2013-06-28 | A kind of reaming knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310266314.1A CN103357959B (en) | 2013-06-28 | 2013-06-28 | A kind of reaming knife |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103357959A true CN103357959A (en) | 2013-10-23 |
| CN103357959B CN103357959B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310266314.1A Active CN103357959B (en) | 2013-06-28 | 2013-06-28 | A kind of reaming knife |
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| Country | Link |
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| CN (1) | CN103357959B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860724A (en) * | 2019-12-10 | 2020-03-06 | 株洲钻石切削刀具股份有限公司 | Cutting tool with guide structure |
| CN113770401A (en) * | 2021-10-08 | 2021-12-10 | 江苏师范大学 | Boring cutter with air pressure support and vibration eliminating method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5540526A (en) * | 1994-09-06 | 1996-07-30 | Leblond Makino Machine Tool Company | Fluid bearing tool and a method for forming the same |
| CN101396742A (en) * | 2008-10-27 | 2009-04-01 | 合肥工业大学 | Hydrostatic pressure auxiliary shoring cutter-holder and shoring method |
| CN201405135Y (en) * | 2009-05-05 | 2010-02-17 | 洛阳古城机械有限公司 | Flexible reamer used for processing starting motor components of automobile |
| EP1951466B1 (en) * | 2005-11-06 | 2010-04-14 | Iscar Ltd. | Rotary cutting tool |
| US20110020083A1 (en) * | 2008-08-21 | 2011-01-27 | Mapal Fabrik Fur Prazisionswerzeuge Dr. Kress Kg | Reamer |
| CN102378662A (en) * | 2009-03-10 | 2012-03-14 | 钴碳化钨硬质合金公司 | Cutting tool for a machine tool |
-
2013
- 2013-06-28 CN CN201310266314.1A patent/CN103357959B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5540526A (en) * | 1994-09-06 | 1996-07-30 | Leblond Makino Machine Tool Company | Fluid bearing tool and a method for forming the same |
| EP1951466B1 (en) * | 2005-11-06 | 2010-04-14 | Iscar Ltd. | Rotary cutting tool |
| US20110020083A1 (en) * | 2008-08-21 | 2011-01-27 | Mapal Fabrik Fur Prazisionswerzeuge Dr. Kress Kg | Reamer |
| CN101396742A (en) * | 2008-10-27 | 2009-04-01 | 合肥工业大学 | Hydrostatic pressure auxiliary shoring cutter-holder and shoring method |
| CN102378662A (en) * | 2009-03-10 | 2012-03-14 | 钴碳化钨硬质合金公司 | Cutting tool for a machine tool |
| CN201405135Y (en) * | 2009-05-05 | 2010-02-17 | 洛阳古城机械有限公司 | Flexible reamer used for processing starting motor components of automobile |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860724A (en) * | 2019-12-10 | 2020-03-06 | 株洲钻石切削刀具股份有限公司 | Cutting tool with guide structure |
| CN110860724B (en) * | 2019-12-10 | 2021-10-01 | 株洲钻石切削刀具股份有限公司 | Cutting tool with guide structure |
| CN113770401A (en) * | 2021-10-08 | 2021-12-10 | 江苏师范大学 | Boring cutter with air pressure support and vibration eliminating method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103357959B (en) | 2015-09-30 |
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